More intuition of what a derivative is. Using the derivative to find the slope at any point along f(x)=x^2


This movie is part of the collection: Khan Academy

Keywords: Salman Khan; Khan Academy

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Reviewer: eduardo1966 - - February 16, 2012
Subject: Clear explanation but has glaring error
This is a very clear description of derivatives, but I must stay that there is an error midway through. The expression(6h+h^2)/h does not simplify to 6+h^2. The correct simplification is 6+h.